Gotta work up a sweat somehow!

Yesterday, cameras caught Joe Jonas dressed in all black as he was coming from a hike with friends at Runyon Canyon in Hollywood.

Joe later on helped celebrate his brother Nick's 20th birthday on Sunday as the siblings partied at Bagatelle in West Hollywood where Tom Cruise's son DJ Connor Cruise providing the tunes. Guess that hike was perfectly timed!

Don't believe the rumors!

Joe Jonas turned 23 yesterday, and before the celebrations began, the singer stopped by The Grove to tape a segment for Extra.

Rumors swirled recently that ex-girlfriend Taylor Swift's new song "We Are Never Ever Getting Back Together" was penned about the teen heartthrob, but Mr. Jonas cleared up the confusion during a 94.7 Fresh FM interview.

"I can say it's not about me, because I don't think we've ever tried another time. I can tell you it's not about me! I like the song. That said, I think the song is great... Taylor does pop music really well and I'm happy for her," he explained during the radio spot.

The Jonas Brothers member and the Grammy winner dated back in 2008 before he famously dumped her during a 27-second phone call, which the country cutie later blasted him publicly for. All's well that ends well apparently, though!

Claiming he and his former lady keep in touch "as much as we can", Jonas had nothing but kind words for the scorned songstress. "I haven't really spoken to her recently, but I was able to go to her concert last year, and her show live is so phenomenal... I would say anybody should go see it if they have a chance. I think we're cool."

Let the speculation continue T-Swizzle fans!

Joe Jonas and his buff bod are certainly enjoying the sweltering LA heat!

The middle Joe Bro lead the way for a family excursion to Coffee Bean and Tea Leaf in Beverly Hills.

Jonas, who kept it casual in black and white striped board shorts and tennis shoes, proudly displayed his bulging biceps in a white tank. Eye candy, indeed. Just last night, Joe hung out with Tom Cruise's 17-year-old son, Connor. Must have been a good ol' time.

Nothing like getting a morning jolt from a tasty caffeinated drink ... and from seeing the sexiest Joe Bro in all his muscular glory!

Tom Cruise's son Connor and buddy Joe Jonas grabbed a late night bite with buddies at Bagatelle in West Hollywood. Hard to believe Tom's DJ son is only 17!

One thing's for sure ... these two boys certainly know how to dress. We're digging Connor's checkered shirt and matching kicks. As for Joe's ensemble, thumbs up on the maroon slacks and grey blazer. What fashionistos!

Perhaps Connor will be spinning tunes for an upcoming Jonas Brothers concert. Talk about star power!

Nothing like a little brother bonding over yummy Brazilian cuisine!

Joe and Nick Jonas hit up Fogo de Chao in LA. We have a feeling they left stuffed considering it's all-you-can-eat. But regardless, the two bros looked sexy as ever in their casual duds.

We couldn't help but notice that Joe is driving a brand new white Fisker Karma. Nice ride! Too bad their older bro Kevin couldn't join them.

Everyone knows Joe Jonas for his singing but also his culinary craftiness? Well, not quite.

The singer was ready to take orders over the weekend as he lent his star power to the Eton Academy Fundraiser at the Silverlake Recreation Center. He was joined by friend and former co-star Meaghan Martin to help man the Canter’s Deli food truck to help raise monies for the school.

It's always great to see stars lending a hand during their free time, not to mention serving food to kids, and Joe seemed to take on the responsibility well. He even surprised one lucky fan for good measure!

Joe Jonas and Pauly D are two of the famous faces who will appear on Fox's new dating show The Choice, which sets a star up with a non-celebrity every week.

Cat Deely will host the show, and celebs will hear pitches from prospective dates over the course of three rounds until matches have been made.

Other guests include Pauly D's Jersey Shore co-star Mike "The Situation" Sorrentino, Dean Cain, Rob Kardashian, Tyson Beckford, Romeo, football star Warren Sapp and American Idol alum Taylor Hicks. The women who will appear on the show include Carmen Electra, 2010 Miss USA Rima Fakih, Sophie Monk and model Hope Dworaczyk.

"What started out as a goof ended up being a ridiculously good format," Fox producer Mike Darnell told Entertainment Weekly. "It really feels like a hit. It was charming and funny ... [The show] works beautifully. It's going to sell all over the world."

The show will premiere on June 7 ... will you watch?

Joe Jonas is a hottie no matter what, but it looks like he may have had a bad run-in with a set of clippers!

The middle JoBro was snapped in New York City over the weekend, and we're not sure who advised him to crop his locks this way, but he doesn't seem to mind! Joe has dropped by a handful of Fashion Week events over the past few days, including the Hudson Jeans bash and the Simon Spurr Fall 2012 fashion show at Milk Studios last night. Hmm, think he's in it for the clothes or the models?